"Sat, 03 Aug 2024 15:14:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240803
Only TIME
15:14:21
General datetime
2024-08-03 15:14:21Z
For Database
2024-08-03 15:14:21
For HTTP1.1
Sat, 03 Aug 2024 15:14:21 GMT